Search

Search Results

• 1. [Article] Fluvial Wood Presence and Dynamics over a Thirty Year Interval in Forested Watersheds

  It has long been known that the presence of wood in rivers plays a vital biological and functional role and that a reciprocal relationship exists between woody material and the geomorphology of rivers. ...

  Citation × Citation Citation Abstract Copy Title: Fluvial Wood Presence and Dynamics over a Thirty Year Interval in Forested Watersheds Author: Atha, Jane Year: 2013 It has long been known that the presence of wood in rivers plays a vital biological and functional role and that a reciprocal relationship exists between woody material and the geomorphology of rivers. Fluvial wood studies, however, are rarely ongoing through time in order to ascertain long-term wood patterns within complete drainage networks. This dissertation addresses the temporal lag in fluvial wood patterns throughout four watersheds in the Oregon Coast Range by recreating a field dataset first collected in 1979 and then again in 1998. Statistical and spatial analysis of stream morphometric data at designated transects throughout the watersheds in addition to analysis of log step and log jam inventories provide insight into significant changes that have occurred over a thirty year interval at a multi-basin scale. These watersheds are located in areas that have been impacted by years of timber harvesting in the mid-twentieth century, however, clearcutting has been on the decline since the early 1980s. This research investigates the impacts that the legacy of clearcutting and subsequent afforestation has had on the abundance and volume of fluvial wood in the stream networks of these four watersheds. I digitized historical aerial imagery to determine the amounts of clearcutting in the basins over time. I integrated this variable with channel morphometric variables to assess predictors of wood abundance and volume through multiple regression analysis. Results show that the stream that has been the most affected by clearcutting has lower volumes of wood than measured in 1979 or 1998. Residence times of wood are short in these watersheds and wood abundance and volume was highly impacted by the debris flows that occurred during the Storm of 1996, prior to the 1998 data collection. There are statistically significant changes that have occurred in the stream morphology among the four watersheds. This dissertation also tests a method of detecting fluvial wood through airborne lidar analysis. This method provides an alternative to field surveys in areas of even the most extreme tree canopy cover. Title: Fluvial Wood Presence and Dynamics over a Thirty Year Interval in Forested Watersheds Author: Atha, Jane Year: 2013 It has long been known that the presence of wood in rivers plays a vital biological and functional role and that a reciprocal relationship exists between woody material and the geomorphology of rivers. Fluvial wood studies, however, are rarely ongoing through time in order to ascertain long-term wood patterns within complete drainage networks. This dissertation addresses the temporal lag in fluvial wood patterns throughout four watersheds in the Oregon Coast Range by recreating a field dataset first collected in 1979 and then again in 1998. Statistical and spatial analysis of stream morphometric data at designated transects throughout the watersheds in addition to analysis of log step and log jam inventories provide insight into significant changes that have occurred over a thirty year interval at a multi-basin scale. These watersheds are located in areas that have been impacted by years of timber harvesting in the mid-twentieth century, however, clearcutting has been on the decline since the early 1980s. This research investigates the impacts that the legacy of clearcutting and subsequent afforestation has had on the abundance and volume of fluvial wood in the stream networks of these four watersheds. I digitized historical aerial imagery to determine the amounts of clearcutting in the basins over time. I integrated this variable with channel morphometric variables to assess predictors of wood abundance and volume through multiple regression analysis. Results show that the stream that has been the most affected by clearcutting has lower volumes of wood than measured in 1979 or 1998. Residence times of wood are short in these watersheds and wood abundance and volume was highly impacted by the debris flows that occurred during the Storm of 1996, prior to the 1998 data collection. There are statistically significant changes that have occurred in the stream morphology among the four watersheds. This dissertation also tests a method of detecting fluvial wood through airborne lidar analysis. This method provides an alternative to field surveys in areas of even the most extreme tree canopy cover. Close

• 2. [Article] UO Post Occupancy Classroom Survey 2003

  Contains the pilot survey of Summer 2003 and the survey of Winter 2003. Summer 2003 survey contains an SPSS faculty data set, faculty instrument, faculty sample report, SPSS students data set, students ...

  Citation × Citation Citation Abstract Copy Title: UO Post Occupancy Classroom Survey 2003 Author: Oregon Survey Research Laboratory, University of Oregon. Campus Operations Year: 2005, 2003 Contains the pilot survey of Summer 2003 and the survey of Winter 2003. Summer 2003 survey contains an SPSS faculty data set, faculty instrument, faculty sample report, SPSS students data set, students codebook, students instrument, and students sample report. Winter 2003 survey contains all of the above plus a faculty codebook. Title: UO Post Occupancy Classroom Survey 2003 Author: Oregon Survey Research Laboratory, University of Oregon. Campus Operations Year: 2005, 2003 Contains the pilot survey of Summer 2003 and the survey of Winter 2003. Summer 2003 survey contains an SPSS faculty data set, faculty instrument, faculty sample report, SPSS students data set, students codebook, students instrument, and students sample report. Winter 2003 survey contains all of the above plus a faculty codebook. Close

• 3. [Article] Oregon Annual Social Indicators Survey (OASIS) 2001

  Contains code book, a survey instrument, an SPSS data set, and a sample report.

  Citation × Citation Citation Abstract Copy Title: Oregon Annual Social Indicators Survey (OASIS) 2001 Author: Oregon Survey Research Laboratory, Oregon. Criminal Justice Commission, ECO Northwest, Ltd., Oregon. Dept. of Motor Vehicles Year: 2005, 2001 Contains code book, a survey instrument, an SPSS data set, and a sample report. Title: Oregon Annual Social Indicators Survey (OASIS) 2001 Author: Oregon Survey Research Laboratory, Oregon. Criminal Justice Commission, ECO Northwest, Ltd., Oregon. Dept. of Motor Vehicles Year: 2005, 2001 Contains code book, a survey instrument, an SPSS data set, and a sample report. Close

• 4. [Article] ODOT Studies/Construction Site 9a (Sweet Home Households) Survey

  Contains survey instruments and a SPSS data set.

  Citation × Citation Citation Abstract Copy Title: ODOT Studies/Construction Site 9a (Sweet Home Households) Survey Author: Oregon Survey Research Laboratory, Oregon. Dept. of Transportation Year: 2005, 1999 Contains survey instruments and a SPSS data set. Title: ODOT Studies/Construction Site 9a (Sweet Home Households) Survey Author: Oregon Survey Research Laboratory, Oregon. Dept. of Transportation Year: 2005, 1999 Contains survey instruments and a SPSS data set. Close

• 5. [Article] UO Faculty Attitudes Survey

  Contains an SPSS data set, codebook, survey instrument and sample report.

  Citation × Citation Citation Abstract Copy Title: UO Faculty Attitudes Survey Author: Oregon Survey Research Laboratory Year: 2005, 2000 Contains an SPSS data set, codebook, survey instrument and sample report. Title: UO Faculty Attitudes Survey Author: Oregon Survey Research Laboratory Year: 2005, 2000 Contains an SPSS data set, codebook, survey instrument and sample report. Close

• 6. [Article] Tobacco Cessation Programs Survey

  Contains an SPSS data set, codebook, survey instrument, sample report, and supplemental material.

  Citation × Citation Citation Abstract Copy Title: Tobacco Cessation Programs Survey Author: Oregon Survey Research Laboratory, Oregon Coalition of Health Care Purchasers Year: 2005, 2002 Contains an SPSS data set, codebook, survey instrument, sample report, and supplemental material. Title: Tobacco Cessation Programs Survey Author: Oregon Survey Research Laboratory, Oregon Coalition of Health Care Purchasers Year: 2005, 2002 Contains an SPSS data set, codebook, survey instrument, sample report, and supplemental material. Close

• 7. [Article] Reservations Northwest Users Survey 2000

  Contains an SPSS data set, codebook, survey instrument, methodology report, and sample report.

  Citation × Citation Citation Abstract Copy Title: Reservations Northwest Users Survey 2000 Author: Oregon Survey Research Laboratory, Oregon. State Parks and Recreation Dept. Year: 2005, 2000 Contains an SPSS data set, codebook, survey instrument, methodology report, and sample report. Title: Reservations Northwest Users Survey 2000 Author: Oregon Survey Research Laboratory, Oregon. State Parks and Recreation Dept. Year: 2005, 2000 Contains an SPSS data set, codebook, survey instrument, methodology report, and sample report. Close

• 8. [Article] Reservations Northwest Users Survey 1999

  Contains an SPSS data set, codebook, survey instrument, and full report.

  Citation × Citation Citation Abstract Copy Title: Reservations Northwest Users Survey 1999 Author: Oregon Survey Research Laboratory, Oregon. State Parks and Recreation Dept. Year: 2005, 1999 Contains an SPSS data set, codebook, survey instrument, and full report. Title: Reservations Northwest Users Survey 1999 Author: Oregon Survey Research Laboratory, Oregon. State Parks and Recreation Dept. Year: 2005, 1999 Contains an SPSS data set, codebook, survey instrument, and full report. Close

• 9. [Article] Oregon Parks and Recreation Department Trail User Survey

  Contains an SPSS data set, codebook, survey instrument, methodology report, and full report.

  Citation × Citation Citation Abstract Copy Title: Oregon Parks and Recreation Department Trail User Survey Author: Oregon Survey Research Laboratory, Oregon. State Parks and Recreation Dept. Year: 2005, 2004 Contains an SPSS data set, codebook, survey instrument, methodology report, and full report. Title: Oregon Parks and Recreation Department Trail User Survey Author: Oregon Survey Research Laboratory, Oregon. State Parks and Recreation Dept. Year: 2005, 2004 Contains an SPSS data set, codebook, survey instrument, methodology report, and full report. Close

• 10. [Article] City of Blue River Community Survey

  Contains an SPSS data set, codebook, a report, a survey instrument, and a sample survey.

  Citation × Citation Citation Abstract Copy Title: City of Blue River Community Survey Author: Oregon Survey Research Laboratory, Oregon. Economic and Community Development Dept. Year: 2005, 2002 Contains an SPSS data set, codebook, a report, a survey instrument, and a sample survey. Title: City of Blue River Community Survey Author: Oregon Survey Research Laboratory, Oregon. Economic and Community Development Dept. Year: 2005, 2002 Contains an SPSS data set, codebook, a report, a survey instrument, and a sample survey. Close